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Phosphorus-modified phenolic resin and preparation method thereof

A technology of phenolic resin and phosphorus modification, which is applied in the field of phosphorus-modified phenolic resin and its preparation, and achieves the effects of reducing environmental pollution, optimizing production conditions and excellent film-forming stability.

Inactive Publication Date: 2013-12-18
广西藤县通轩立信化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a new phosphorus-modified phenolic resin material and its preparation method, which solves the problem of completely relying on foreign imports of phosphorus-modified phenolic resins in the past

Method used

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  • Phosphorus-modified phenolic resin and preparation method thereof
  • Phosphorus-modified phenolic resin and preparation method thereof
  • Phosphorus-modified phenolic resin and preparation method thereof

Examples

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Embodiment Construction

[0021] Table 1 shows the reaction raw material components and reaction conditions in Examples 1 to 10, wherein the phenols described in Examples 1 to 10 are all nonylphenols.

[0022] Prepare according to the following preparation steps in conjunction with the reaction raw material components and reaction conditions that table 1 provides:

[0023] A. Take phenol, formaldehyde and water and add them into a four-necked flask and mix them evenly, then add a catalyst and mix them evenly, put the four-necked flask into an electric heating mantle and heat for condensation reaction to obtain a phenolic condensate, release it after cooling down, and separate it residual moisture;

[0024] B. Add the phenolic condensate obtained in step A back into the four-neck bottle, add monohydric alcohol and mix evenly, then add aluminum oxide and sulfuric acid as a catalyst, keep warm and reflux for dehydration reaction after heating up, and seal the phenolic condensate with one side terminal-ba...

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Abstract

The invention discloses a phosphorus-modified phenolic resin material with a new chemical structural formula and a preparation method thereof. The method comprises the following steps: polycondensing nonylphenol and formaldehyde under the action of a catalyst to obtain a nonylphenol aldehyde condensation intermediate; and reacting the intermediate with monobasic alcohols and organic phosphorus heterocyclic compounds at a preset temperature for preset time under catalytic conditions to prepare the phosphorus-modified nonylphenolic resin. The method solves the problem of complete dependency on the phosphorus-modified phenolic resin imported from abroad in the past, and enhances the heat resistance, binding strength, peel strength, favorable space size, excellent electric properties, mechanical strength and other physicochemical performance indexes of the original phosphorus-modified phenolic resin, so that the phosphorus-modified phenolic resin has better application properties when being applied to the field of electronic chemicals.

Description

technical field [0001] The invention belongs to the field of phosphorus-modified epoxy resins, and in particular relates to a phosphorus-modified phenolic resin and a preparation method thereof. Background technique [0002] At present, domestic phosphorus-modified resin systems are limited to phosphorus-modified epoxy resin systems, which are mainly used in the coating field of electronic sealing coatings. In recent years, with the continuous improvement of application requirements and application performance in the coating field, higher requirements have been put forward for the physical and chemical application performance parameters of phosphorus-modified epoxy resin curing agents. Oxygen resins can no longer meet the application requirements of this high-end field of electronic coating. In response to the special needs of the market, in the United States at the beginning of the 20th century, some international large chemical companies began to explore the use of organop...

Claims

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Application Information

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IPC IPC(8): C08G8/36
Inventor 关炽昌刘涛
Owner 广西藤县通轩立信化学有限公司
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